avfilter/vf_removelogo: use av_freep() for saftey

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/vf_removelogo: fix offset for accessing pixels above and below

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/vf_removelogo: fix pixel pointer so it points where its intended

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/lavfutils: fix memleak of avpacket

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
riff: Add a mapping for VP6A

This allows demuxing VP6A from F4V files.

Signed-off-by: Martin Storsjö <martin@martin.st>
avdevice/pulse_audio_enc: fix stream index

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
avformat/ftp: fix possible deadlock

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
avformat/ftp: add log regarding passive mode failure

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  riff: Add a mapping for VP6A

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'lukaszmluki/master'

* lukaszmluki/master:
  avformat/ftp: add log regarding passive mode failure
  avformat/ftp: fix possible deadlock
  avdevice/pulse_audio_enc: fix stream index

Merged-by: Michael Niedermayer <michaelni@gmx.at>
audio_mix: fix channel order in mix_1_to_2_fltp_flt_c

CC:libav-stable@libav.org
FATE: add lavr mixing tests
FATE: add lavr resampling tests
lavc doxy: remove false statements about alignment requirements.

The packet data does not need to be aligned.
lavc doxy: extend/clarify avcodec_decode_audio4() doxy

Elaborate on flushing the decoder.
oggparsevorbis: support official chapter extension

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
oggparsevorbis: check allocations

Signed-off-by: Anton Khirnov <anton@khirnov.net>
oggdec: add support for Opus in Ogg demuxing
flac: move picture parsing code in a separate file

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
oggvorbisdec: add support for embedded cover art

Signed-off-by: James Almer <jamrial@gmail.com>